Which type of valve is effective in regulating the flow of fluid?

The globe valve is particularly effective in regulating the flow of fluid due to its design, which allows for precise control over the flow rate. The internal structure of a globe valve includes a movable disk or plug that can be raised or lowered within a spherical body, effectively changing the size of the flow passage. This design enables the operator to adjust the valve position to facilitate fine-tuning of the flow, making it suitable for applications where varying flow rates are necessary.

In contrast, the gate valve is mainly designed for fully opened or fully closed positions, which means it is not as effective for flow regulation since it does not provide a controlled throttling capability. The butterfly valve often offers good flow regulation; however, it is generally better suited for applications requiring quick opening and closing rather than fine control. The check valve, on the other hand, is intended to prevent backflow and does not regulate flow, functioning only in one direction. Hence, the globe valve stands out as the best option for effective flow regulation.